i have got Cisco 6509,2950,3550 & 3750 switches, i wanted monitor the network traffic on the network, implemented VLAN's also, so is there any software in cisco itself or any other 3rd party software available.?
I have been looking into doing this, too. I found a 3rd party software that looks interesting. It is OpManager from AdventNet. The free one will monitor up to 20 devices. If you need to do more than that you can upgrade to Professional for $795. Here is the URL: http://manageengine.adventnet.com/products/opmanager/
I use MRTG, Multi Router Traffic Grapher, and it works very well.
You can download it from http://mrtg.hdl.com/mrtg.html. It is available for Unix and Windows and is freely available under the terms of the GNU General Public License.
Good luck.
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